Suppose we have 2 (or more) musical notes, played with some kind of
standard musical-instrument onset. Let’s use, say, piano, guitar, and
maybe a woodwind.

What is the analytic result (looking at the analytic envelopes of the
signals) in terms of time offset (or not) that results in the notes
being perceived as exactly simultaneous?

First, with notes nearby (to get dL’s) and then with widely spread
notes (in frequency, not time), to get a sense of how the various
bandwidths of the cochlear filtering and the bandwidth of the
instrument play off against each other.

Interestingly I’m not actually aware of any clear results of this
sort, although they may exist, I don’t know of them.

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